SS Atlantic may refer to,
- SS Atlantic (1849), the Collins Line trans-Atlantic steamship.
- SS Atlantic (1871), a steamship that struck rocks and sank off Halifax, Nova Scotia in 1873, killing at least 535 people.
- SS Atlantic (1953), American passenger liner, that the Chinese magnate C.Y. Tung purchased in 1971 and converted into a university at sea under the name SS Universe.